Abstract: In a method for reducing interference in a first wireless communication network and a second wireless communication network, a first access point (AP) device of the first wireless communication network coordinates with a second AP device of the second wireless communication network with respect to utilizing transmit beamforming at the first AP device and transmit beamforming at the second AP device for the purpose of reducing interference in the first wireless communication network and the second wireless communication network. Based on coordinating with the second AP device, the first AP device uses a beamforming matrix to transmit, via a multiple input, multiple output (MIMO) communication channel, to one or more first stations in the first wireless communication network for mitigating interference between the first wireless communication network and the second wireless communication network.

Abstract: In a method for reducing interference in wireless communications, a beamforming matrix is determined at a first communication device based on an estimate of a multiple input, multiple output (MIMO) communication channel between the first communication device and a second communication device. Both the first communication device and the second communication device belong to a first wireless network. Alternatively, the beamforming matrix may be generated based on the estimate of the MIMO communication channel and received at the first communication device. The beamforming matrix is used at the first communication device for the purpose of reducing interference to a second wireless network. where the interference is caused by the first communication device transmitting to the second communication device via the MIMO communication channel.

Abstract: In a method for reducing interference in a first wireless communication network and a second wireless communication network, a first access point (AP) device of the first wireless communication network coordinates with a second AP device of the second wireless communication network with respect to utilizing transmit beamforming at the first AP device and transmit beamforming at the second AP device for the purpose of reducing interference in the first wireless communication network and the second wireless communication network. Based on coordinating with the second AP device, the first AP device uses a beamforming matrix to transmit, via a multiple input, multiple output (MIMO) communication channel, to one or more first stations in the first wireless communication network for mitigating interference between the first wireless communication network and the second wireless communication network.

Abstract: In a method for reducing interference in wireless communications, a beamforming matrix is determined at a first communication device based on an estimate of a multiple input, multiple output (MIMO) communication channel between the first communication device and a second communication device. Both the first communication device and the second communication device belong to a first wireless network. Alternatively, the beamforming matrix may be generated based on the estimate of the MIMO communication channel and received at the first communication device. The beamforming matrix is used at the first communication device for the purpose of reducing interference to a second wireless network. where the interference is caused by the first communication device transmitting to the second communication device via the MIMO communication channel.

Abstract: A system, apparatus and method are described for transforming an existing broadcasting protocol to a wireless communication networks. Since the initial frequency band is unknown between the server and the client, a protocol is proposed to synchronize the client with the server first in frequency band and second in time. Once the synchronization is done, any message exchanging protocols can facilitate communications. For example, several packets in the broadcasting protocols can be aggregated to form a frame structure. The same protocol can be used when there is a repeater between the server and the client. For video application, a rendering device such as a TV could be controlled by the client via an interface such as infrared. The rendering device can be automatically tuned to the server's transmit frequency automatically by the client without user's intervention.

Abstract: Methods provide for the amount of information encoded by spectral keying into a UWB symbol having a plurality of modulation symbol times, to be increased by operating two or more frequency band carriers simultaneously during at least one of a plurality of modulation symbol times. In one aspect of the present invention, once a frequency resource, such as a carrier, has been used during a given modulation symbol time, those frequency resources are not used again within that UWB symbol. A method of transmitting symbols, includes providing (302) data to be transmitted, determining (304), which frequency carriers, if any, of a set of n frequency carriers, are to be turned on during each of n modulation symbol times, and turning on (306) each of the determined frequency carriers during each of the modulation symbol times, and wherein each frequency carrier is turned on only once during the transmission of the symbol.

Abstract: A TDD/TDMA wireless superframe includes a slot having a plurality of OFDM symbols. A guard time interval is arranged after the slot containing the OFDM symbols. There are a plurality of packets arranged subsequent to the guard time interval. A majority of the plurality packets comprise payload frames that are dynamically assigned in concatenation so as to provide access to/from one or more legacy devices operating in a LAN environment under a different protocol. The TDD/TDMA protocol is compatible with existing legacy devices under CSMA/CA. When there is at least one legacy device and one non-legacy device receiving communication, the legacy device is provided communication by enabling the Dynamic Contention packet service, with both the legacy device and non-legacy device receiving communications in the same frequency band.